What's the longest running "inside joke" at your table? It must be
the fistfull of dollars-joke. Whenever a player says or does something incredibly inappropriate someone will bring it up.
A few years ago when D&D3E was new one of the players role-played this naive bard who really, really wanted to be an adventurer. He often did adventurous (or downright unexpected) things for his own excitement and the character even owned "the adventurers handbook", a book he quoted frequenly.
Anyhow, we were in a small inn when the bard decided to steal a few gold coins from the bartender. For some unknown reason he also took some money from the paladin, another PC. The paladin was more cautious than the bartander and he (the paladin) eventuelly noticed what has happened. Being a defender of justice he immediatly questioned the bard.
Before we continue, it can be worth to mention that we used the rule that everything you say, you say in game, unless you explicitly tell everyone you are speaking off game. It can also be worth to mention that we talked quite a bit off game when a PC stole from another PC, whether the bard acted correctly and so on. This went on for a while and then we decided to continue gaming.
The paladin asked the obvious question. However, the bard player was probably unaware that we were in game again so he proudly told the paladin how he "took a several gold pieces from the bartender and a handfull from the paladin".
This player still argues that the DM did the wrong thing to rule this was said in-game.
